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310130103220 = 22572316459289
BaseRepresentation
bin1001000001101010011…
…00011101001110110100
31002122111111111120221021
410200311030131032310
520040121301300340
6354245524230524
731256212245100
oct4406514351664
91078444446837
10310130103220
1110a5863a3833
1250131b3b444
132332576c822
1411020690900
158101bbae4a
hex483531d3b4

310130103220 has 36 divisors (see below), whose sum is σ = 757603540260. Its totient is φ = 106330320768.

The previous prime is 310130103191. The next prime is 310130103229. The reversal of 310130103220 is 22301031013.

It can be written as a sum of positive squares in 2 ways, for example, as 171750567184 + 138379536036 = 414428^2 + 371994^2 .

It is a junction number, because it is equal to n+sod(n) for n = 310130103194 and 310130103203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (310130103229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 158228665 + ... + 158230624.

It is an arithmetic number, because the mean of its divisors is an integer number (21044542785).

Almost surely, 2310130103220 is an apocalyptic number.

It is an amenable number.

310130103220 is an abundant number, since it is smaller than the sum of its proper divisors (447473437040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

310130103220 is a wasteful number, since it uses less digits than its factorization.

310130103220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316459312 (or 316459303 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 310130103220 its reverse (22301031013), we get a palindrome (332431134233).

The spelling of 310130103220 in words is "three hundred ten billion, one hundred thirty million, one hundred three thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 49 70 98 140 196 245 490 980 316459289 632918578 1265837156 1582296445 2215215023 3164592890 4430430046 6329185780 8860860092 11076075115 15506505161 22152150230 31013010322 44304300460 62026020644 77532525805 155065051610 310130103220